定义：server1=(master) server2=(standby) active standby server when master down. gpactivatestandby -d /data/master/gpseg-1 -f (on server2) change server1 as standby . gpinitstandby -s server1 (on server2) gpactivatestandby -d /data/master/g
定义：server1=(master) server2=(standby)active standby server when master down.
gpactivatestandby -d /data/master/gpseg-1 -f (on server2)change server1 as standby .
gpinitstandby -s server1 (on server2)
gpactivatestandby -d /data/master/gpseg-1 -f (on server1)restore server1 as master
gpstop -m (on server2)
gpactivatestandby -d /data/master/gpseg-1 -f (on server1)restore server2 as standby
gpinitstandby -s server2 (on server1)
mark: pay attention to store or remove /data/master/gpseg-1 when do gpactivatestandby operation.